A small library for attempting to perform sub-millisecond waits.
Currently the sleep is implemented as a busy loop, which is not ideal from a power perspective, but it was easy to write. Future versions may include optional NIFs for using lower level operations which may be more power-efficient.
Just call Microwait.wait_micros(500) to perform a wait of at least 500
microseconds.
Pass a second optional true parameter to have the wait internally call
:erlang.yield(). This call won't be helpful on multicore machines (and per
the erlang documentation, may actually hurt performance), but might aid overall
performance on single-core machines.
Microwait.wait_micros(500, true)
- Implement NIF(s) which may use underlying OS-level sleep operations.
- Efficiency improvements, such as using normal
Process.sleep/1calls when specified wait times are greater than a millisecond. - Track BEAM reduction rate.